Backgammon NJ supports two types of online matches against other iOS players:

Real-time online matches
These matches are played to completion in one sitting without interruption.

Turn-based online matches
These matches are played at your own pace. You can do anything you want (answer a phone call, use other apps, etc.) for as much time as you want between moves. You can play multiple turn-based matches at the same time.

Make sure that both devices (for you and your contact) are running iOS 10+

Add your contact to the Contacts app on your device using the email address or phone number that he/she uses for the Messages app

Make sure that your contact also adds you to the Contacts app on his/her device using the email address or phone number that you use for the Messages app

Run Backgammon NJ

Select Advanced Options (arrow at upper left corner)

Select Real-time (or Turn-based)

Select Invite Friend

Tap the Invite Friends button

Type the name of a contact, and select a match from the listor
Tap the "+" button, select the Contacts tab, select a contact from the list, and tap "Add"

Tap the up arrow on the right side to send the invite

Note: You can only invite contacts whom you can message with the Messages app. Both you and your contact must be logged in to three accounts: iCloud, Messages, and Game Center. Also, when logging in to these accounts, you and your contact must use different Apple IDs.

To invite a Game Center friend:

Run Backgammon NJ

Select Advanced Options (arrow at upper left corner)

Select Real-time (or Turn-based)

Select Invite Friend

Tap the Invite Friends button

Tap the "+" button, select the Recent tab, select a friend from the list, and tap "Add"

Tap the up arrow on the right side to send the invite

Note: Apple has removed support for adding Game Center friends in iOS 10+. You can still invite friends that you added before iOS 10, but you can't add new friends in iOS 10+.

Apple's Game Center server could be experiencing problems. Check the Game Center server system status.

Check that your router, firewall, or other software is not blocking access to the ports required to run Game Center.

Public or business Wi-Fi spots will most likely be behind a firewall. Thus, it may be difficult to play online at these locations using Wi-Fi. Try using a cellular network if you're not able to connect using Wi-Fi.

Internet connectivity is highly dependent on the reliability of your Wi-Fi or cellular connection. If either you or your opponent have a weak connection, it may cause your online match to lag or disconnect. Try playing a few real-time auto-matches from the same room that your router is in. That way, you'll know that you're getting a stronger Wi-Fi signal. Doing this, check to see if you can complete more matches without disconnecting.

On an iPhone or iPod touch, the Wi-Fi antenna is usually located at the top or sides of the device. If you cover the area near the Wi-Fi antenna with your hand when holding your device, it will considerably weaken your Wi-Fi connection strength. Try changing your grip on your device so that you don't cover the Wi-Fi antenna area.

Perform a hard reset on your device. To do this, press and hold the Sleep/Wake button on top of your device for a few seconds until a red slider appears, and then slide the slider. Then press and hold the Sleep/Wake button until the Apple logo appears.

Force quit Backgammon NJ by doing the following:

Double-tap the Home button to display recently used apps.

Swipe upwards on the Backgammon NJ preview to quit the app.

Click on the Home button to return to the Home screen.

Run Backgammon NJ and start an online match.

If you're having problems inviting a contact or friend, make sure that you set the options listed here.

If the above solutions don't solve your problem, please contact us directly with detailed information about exactly what is occurring in your situation and what solutions you have tried. The more detailed the information that you provide us, the easier it will be for us to resolve potential issues.

When there are many players looking for auto-matches, it usually takes a few minutes or less to find a match. This is more likely on weekends when many players are online. When there are few players online, it could take up to 15 minutes or longer to find a match.

For a real-time match, you can use the app normally while you wait for a match. Feel free to play against the computer, look at your stats, or do anything else that you would normally do in the app if you weren't playing online. As long as you're running Backgammon NJ, it will notify you when an online match is found for you.

For a turn-based match, you don't need to be running Backgammon NJ to be matched. You can do other things and then return to Backgammon NJ later to see if a match has been found for you. Depending on how you have your Game Center notifications set, you can also choose to be notified when a match is found.

No, you won't lose your current offline match. For a real-time online match, your offline match will be resumed after you complete your online match. For a turn-based online match, you can switch between your online and offline match at any time.

(Important Note: Aborting a match is different from resigning a game. If you resign a game, you concede the win for the game. If you abort a match, you don't concede the win for the match. Aborting a match makes Backgammon NJ evaluate both players' current positions in the match and award the appropriate Elo points to each player. More details below.)

Yes, aborting or disconnecting during a match will result in a partial change to both your and your opponent's Elo ratings, depending on each player's current equity in the match.

For example, if your opponent decides not to complete the match when you are winning, you can select "Abort Match" from the Advanced Options menu. Doing this will abort your online match, give you a positive partial Elo change, and give your opponent a negative partial Elo change. After you abort the match, you'll see the partial Elo change in the final online match score window. Similarly, if you or your opponent disconnect or quit the app before your online match is complete, the partial Elo changes will still occur, even if you do not see the final online match score window showing the changes.

For each auto-match, the Game Center server matches 2 people together. If everyone is matched up, that means there is at most 1 person waiting for an opponent at any given time. If you decline a match with Player A, it will continue to match you with Player A until:

A different player becomes available by finishing an online match and searching for another auto-match, or

Yes, the leaderboards for the HD and non-HD versions of Backgammon NJ are separate. In order to invite a friend to play, you and your friend must be using the same version of Backgammon NJ (either HD or non-HD). We recommend using the HD version, as it is optimized for all iOS devices and screen sizes.

If the Automatic Bearoff option is set to "Best Move," it will default to "Greedy" for online matches. If you don't want to play in Greedy mode for online matches, you must set Automatic Bearoff to "Off."